Bov not opening - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

drftrkidd · 11-18-2011, 02:28 PM

I recently put a fmic on my sr20 and ever since then my bov isnt going of I used a T fitting on the throttle body so i could connect my actuator and my bov vacuum lines. i have adjusted the bov and nothing still. im getting compressor surge and I dont know what else to do
can anyone help me with this problem?

thanks

pstarkt87 · 11-18-2011, 02:46 PM

shouldnt have fixed it with super glue .... smh

fullthrottle · 11-18-2011, 02:58 PM

You probably have a fake bov. your going to deny it and say you got it from someone that said it was real. In reality they probably got it used also from the person who bought it on ebay.

Darren · 11-18-2011, 03:00 PM

correct me if i'm wrong (i usually am)

- blowoff should be connected to the intake manifold
- actuator (assuming mbc or ebc) should be connected between boost controller and wastegate

connecting actuator to intake manifold really shouldn't do anything cause the boost controller can't keep the wastegate open...

just a thought

Darren · 11-18-2011, 03:01 PM

Quote:

Originally Posted by fullthrottle

You probably have a fake bov. your going to deny it and say you got it from someone that said it was real. In reality they probably got it used also from the person who bought it on ebay.

from the first post, it appears that the BOV did work before the FMIC was installed??....

Walperstyle · 11-18-2011, 03:05 PM

^the 'fake' ones he's talking about are the ones with the weak internals. They work a few times before the heat/pressure screws them up.

Darren · 11-21-2011, 07:11 AM

Quote:

Originally Posted by Walperstyle

^the 'fake' ones he's talking about are the ones with the weak internals. They work a few times before the heat/pressure screws them up.

Yeah, my car came with a Greddy knock off... same deal then, it worked "correctly" for about a week and then just leaked like crazy. Currently i have it completely tightened down so it's like it's not there...

Before i tightened it down, though, it did cause the car to run poorly...

drftrkidd · 11-21-2011, 12:50 PM

where should i locate the vacuum lines for the bov and the actuator then?
the bov was working before i had the fmic it is an authentic hks

trsebert · 11-21-2011, 08:41 PM

OK.

1. Run vacuum line from INTAKE MANIFOLD, NOT throttle body straight to BOV nipple.

2. Run vacuum line from INTAKE MANIFOLD to EBC/MBC, then to actuator.

Are you running a boost controller? if you are and you have a crappy BOV that is limited, or has weak internals, at some point it will stop working effectively, and can cause compressor surge, leaks, etc.

One of those parts i personally wouldnt go cheap on.

drftrkidd · 11-23-2011, 01:42 PM

Quote:

Originally Posted by trsebert

OK.

1. Run vacuum line from INTAKE MANIFOLD, NOT throttle body straight to BOV nipple.

2. Run vacuum line from INTAKE MANIFOLD to EBC/MBC, then to actuator.

Are you running a boost controller? if you are and you have a crappy BOV that is limited, or has weak internals, at some point it will stop working effectively, and can cause compressor surge, leaks, etc.

One of those parts i personally wouldnt go cheap on.

im not running a boost controller could i just bypass it and run my vacuum lines straight from the actuator to the manifold?

trsebert · 11-23-2011, 06:01 PM

yeah absolutely man, a boost controller of course is not necessary. Just run a line from the intake manifold to the actuator and you should be good to go.

goplskhansk4 · 11-23-2011, 10:13 PM

yes, the sound is coming out of the intake. its not the bov cause the UICP I have relocates the BOV higher up, away from the intake. and its going to atmos., not recirc. yes, yes, I know, thats bad. I have the recirc fitting as soon as I figure out what the problem is its going on.

fire damage restoration

11-18-2011, 02:28 PM	#1
drftrkidd Join Date: Feb 2011 Location: socal (OC) Age: 28 Posts: 30 Trader Rating: (1) Feedback Score: 1 reviews	Bov not opening I recently put a fmic on my sr20 and ever since then my bov isnt going of I used a T fitting on the throttle body so i could connect my actuator and my bov vacuum lines. i have adjusted the bov and nothing still. im getting compressor surge and I dont know what else to do can anyone help me with this problem? thanks

11-18-2011, 03:05 PM	#6
Walperstyle Nissanaholic! Join Date: Nov 2004 Location: Alberta, Red Derp Age: 40 Posts: 1,729 Trader Rating: (0) Feedback Score: 0 reviews	^the 'fake' ones he's talking about are the ones with the weak internals. They work a few times before the heat/pressure screws them up. __________________ KA-T ORG-Function over Flush

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

11-18-2011, 02:46 PM	#2
pstarkt87 Leaky Injector Join Date: Jul 2011 Location: spangdahlem, Germany Age: 29 Posts: 56 Trader Rating: (0) Feedback Score: 0 reviews	shouldnt have fixed it with super glue .... smh

11-18-2011, 02:58 PM	#3
fullthrottle Zilvia Addict Join Date: Apr 2009 Location: Saint Louis, MO Age: 34 Posts: 661 Trader Rating: (13) Feedback Score: 13 reviews	You probably have a fake bov. your going to deny it and say you got it from someone that said it was real. In reality they probably got it used also from the person who bought it on ebay.

11-18-2011, 03:00 PM	#4
Darren Zilvia Addict Join Date: Apr 2010 Location: kelowna, bc, canada Age: 45 Posts: 680 Trader Rating: (1) Feedback Score: 1 reviews	correct me if i'm wrong (i usually am) - blowoff should be connected to the intake manifold - actuator (assuming mbc or ebc) should be connected between boost controller and wastegate connecting actuator to intake manifold really shouldn't do anything cause the boost controller can't keep the wastegate open... just a thought

11-21-2011, 12:50 PM	#8
drftrkidd Join Date: Feb 2011 Location: socal (OC) Age: 28 Posts: 30 Trader Rating: (1) Feedback Score: 1 reviews	where should i locate the vacuum lines for the bov and the actuator then? the bov was working before i had the fmic it is an authentic hks

11-21-2011, 08:41 PM	#9
trsebert Join Date: May 2011 Location: Grovetown, GA Age: 35 Posts: 32 Trader Rating: (0) Feedback Score: 0 reviews	OK. 1. Run vacuum line from INTAKE MANIFOLD, NOT throttle body straight to BOV nipple. 2. Run vacuum line from INTAKE MANIFOLD to EBC/MBC, then to actuator. Are you running a boost controller? if you are and you have a crappy BOV that is limited, or has weak internals, at some point it will stop working effectively, and can cause compressor surge, leaks, etc. One of those parts i personally wouldnt go cheap on.

11-23-2011, 06:01 PM	#11
trsebert Join Date: May 2011 Location: Grovetown, GA Age: 35 Posts: 32 Trader Rating: (0) Feedback Score: 0 reviews	yeah absolutely man, a boost controller of course is not necessary. Just run a line from the intake manifold to the actuator and you should be good to go.

11-23-2011, 10:13 PM	#12
goplskhansk4 Join Date: Nov 2011 Location: new york Age: 33 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	yes, the sound is coming out of the intake. its not the bov cause the UICP I have relocates the BOV higher up, away from the intake. and its going to atmos., not recirc. yes, yes, I know, thats bad. I have the recirc fitting as soon as I figure out what the problem is its going on. fire damage restoration